Whirling maple seeds inspired these tiny flying sensors

Objects as small as a sand grain could be dispersed by air to monitor environmental conditions

rows of microfliers

Scientists created minuscule “microfliers” in a variety of shapes (shown) that glide through the air similar to maple tree seeds.

Northwestern University

Like helicoptering maple seeds, tiny new fliers whirl gracefully as they glide.

The miniature aircraft, which can be made as small as a grain of sand, could be dispersed by air over long distances.